Almost every request your browser or app sends uses one of two methods: GET or POST. GET asks a server for something. POST hands the server something to process. That one distinction shapes how data travels, whether a request is…
On BNB Smart Chain, “creating a coin” almost always means deploying a token: a smart contract that follows the BEP-20 standard. You can write and launch one on the test network in under half an hour using free tools, then…
TRON dApp development means writing a smart contract in Solidity, deploying it to the TRON Virtual Machine, and connecting it to a user-facing app. The workflow looks a lot like building on Ethereum, but the fees, the resource model, and…
Yes, you can test a WebSocket in Postman without writing a line of client code. You open a WebSocket request, type a ws:// or wss:// server URL, click Connect, then send and read messages in a live pane that stays…
A hierarchical deterministic (HD) wallet generates every key and address it will ever need from a single starting value called a seed. Write down that seed once, and you can rebuild the entire wallet on any device. BIP-32 defined the…
To check a crypto wallet balance, copy the public address, paste it into a block explorer for the right network, and read the total. No login, seed phrase or private key is involved. Anyone can do it for any address,…
EIP-4844 is the Ethereum upgrade that introduced “blobs” — cheap, temporary data packets that rollups use to post transaction data to the main chain instead of paying for expensive calldata. It shipped as part of the Dencun upgrade on March…
A decentralized stablecoin is a cryptocurrency built to hold a steady value, usually $1, without a company custodying the reserves behind it. Instead of a bank account and a corporate issuer, the backing sits in smart contracts anyone can inspect…
A privacy coin is a cryptocurrency built to hide the sender, receiver, and amount of every transaction, using cryptography instead of a company’s privacy policy. Bitcoin and Ethereum publish that same data forever on a ledger anyone can read; Monero,…
A validator node is a computer that stakes cryptocurrency to check new transactions, confirm blocks, and keep a blockchain running honestly. On Proof-of-Stake networks, these machines do the job miners used to do: instead of burning electricity to earn the…